FLU, FEVER, VOMITING, DIARRHEA: 1  If your symptoms include fever and / or vomiting, contact your doctor. The strains of flu this season can be life threatening. 2  If you are vomiting, don't eat or drink for up to 1 hour after the latest instance. Then try 2 ounces of water or flat lemon-lime carbonated beverages.
GI Motitility In the Stomach. 1  Two types of movement (motility) occur in the stomach: peristalsis and segmentation (mixing). 2  The contractions occur about every 20 seconds and proceed from the body of the stomach toward the pyloric sphincter. 3  About 20% of the contractions in the stomach are peristaltic waves.
Epistasis in diploid organisms is further complicated by the presence of two copies of each gene. Epistasis can occur between loci, but additionally, interactions can occur between the two copies of each locus in heterozygotes. For a two locus, two allele system, there are eight independent types of gene interaction.